Question

Which of the following statement is not correct about the reaction of Na metal with liquid ammonia at low temperature

(a) Solution turns blue

(b) Na+ ions are formed in the solution.

(c) Liquid ammonia becomes good conductor of electricity

(d) Liquid ammonia remains diamagnetic

​

Answer 1

Answer:

Correct option is D)

Alkali metals, when dissolved in liquid NH

3

at low temperature, gives the blue coloured solution which is conducting in nature. The blue colored solution of alkali metal in ammonia is paramagnetic

2M+NH

3

→2MNH

2

+H

2

Similarly, sodium also possesses the same properties when dissolved in liquid ammonia

2Na+NH

3

→2NaNH

2

+H

2

Hence option D is correct.

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